应用程序打开时如何从 APNS 获取通知

Question

iphone收到APNS的通知后，我们打开app，app如何从通知中获取消息 首先，我认为系统会将消息存储在通知中，但是在我尝试过之后，我不这么认为。当我们打开应用程序时，它是否再次向APNS发送请求？ （我在QQ里试了一下，收到APNS的通知后，我断开了网络，然后我打开了APP，但是QQ里收不到新消息）

get notification with connecting the Internet

disconnect before open QQ

收到通知后，我没有点击它。并断开网络。然后打开QQ。但是QQ没有收到消息——“hello7”之前通知发送的内容。

Answer 1

设备收到推送通知时系统调用didReceiveRemoteNotification委托方法

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo  {
    application.applicationIconBadgeNumber = 0;            

    if (application.applicationState == UIApplicationStateActive) {                
        // Nothing to do if applicationState is Inactive, the iOS already displayed an alert view.                
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Did receive a Remote Notification" message:[NSString stringWithFormat:@"Your App name received this notification while it was running:\n%@",[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]]delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];          
    }    
}